While I can understand the benefits of the retractable door handles for better airflow and aerodynamics, I am concerned about some of the potential practical functionality of the door handles in certain situations. For example, how would the door handles slide out if the valet wanted to open the door for you or your passenger when you are seated inside the car? Do you need to open it from the inside first? Also, if the car was in a bad collision and the emergency first responders needed to open the door from the outside to get passengers out, how would they open the door besides breaking the windows?
These are just two situations that I thought of that could be of potential concern and hopefully, someone knows how these would be addressed.